Anaheim Stepper MLA10641 Users Guide

MLA10641
High Performance Microstepping Driver 
User’s Guide
910 East Orangefair Lane, Anaheim, CA 92801
e-mail: [email protected](714) 992-6990  fax: (714) 992-0471
website: www.anaheimautomation.com
ANAHEIM AUTOMATION
June 2012L010460  

Introduction
The MLA10641 high-performance microstepping driver has an output current capability from 2.0 Amps 
minimum to 10.0 Amps maximum (Peak Rating).  The MLA10641 driver operates with an AC voltage 
of 90-132 Volts.  The inputs are optically isolated with a minimum sourcing of 7.0 mA per input (+5VDC 
minimum to +24VDC maximum).  The clock input is set to receive either positive or negative edge clock\
s 
with a maximum frequency of 400KHz.  The MLA10641 driver offers direction control and motor...

 
TB1: 8 Pin Input Terminal Description
Power Supply Requirements
The MLA10641 has an input line voltage ranging from 90-132VAC.  TB2 pin 1 is used as the hot terminal 
and is internally fused, TB2 pin 2 is used as the neutral terminal and TB2 pin 3 is the EGND terminal. The 
EGND terminal must be connected.
**NOTE:  The 10EMC1 Filter is required at the power input of the MLA1064\
1 driver.
Pin #Description
1 Step Clock Input Anode (+): 
A positive going edge on this isolated input advances the motor by...

10EMC1 Filter
The 10EMC1 filter is required at the power input of the 
MLA05641 driver.
The 10EMC1 filter is designed to remove EMI-RFI (noise) from 
the power line, such as common and differential mode noises.
A filter is usually located in a system right where the power meets 
the unit or driver, so that EMI/RFI does not affect the unit or be 
emitted from the power source, such as a cord.
The 10EMC1 filter helps prevent damages to the system. 
Specifications
Max. leakage current each Line to...

10EMC1 Filter Continued
Typical Insertion Loss
Measured in closed 50 Ohm System
Minimum Insertion Loss
Common Mode/Assemetrical (Line to Ground)
Current Rating Frequency - MHz
.05 .07 . 11 .15 1210 2030
10A 5213 247272565048
Differential Mode/Symmetrical (Line to Line)
Current 
Rating Frequency - MHz
.05 .07. 11 .15 1210 2030
10A 141512 335458473436
Ordering Information
Manufacturer Part NumberDescription
Mouser 592-10EMC1Power Line Filters 10A 1/4”-1/4” FASTON FLANGE MOUNT
TE Connectivity / Corom...

Absolute Maximum Ratings
Input Voltage: 132 VAC
Ouput Current: 10.0 AMPS PEAK
Max Plate Temperature: 70° C
Storage Temperature: 0° to +50°C
Input Voltage (For Isolated Inputs): +24V at 7mA
Fault Output Signal: Open Collector max. 30V/50mA (optically isolated)
Electrical Specifications:
ItemMinTy pMax Units
Input Voltage (Power) 9011 5132 VA C
Motor Bus Voltage 127160185 VDC
Phase Output Current 1.4147.07A (RMS)
Phase Output Current 2.010.0A (PEAK)
Input Voltage (Inputs) 3.524VDC
Clock Frequency 0400kHz...

Hook Up Drawings
Figure 3: Hook up for current sourcing inputsFigure 2: Hook up for current sinking inputs
June 2012L010460  

Motor Selection
The MLA10641 is a bipolar microstep driver that is compatible with both bipolar and unipolar 
motor configurations, (i.e. 8 and 4 lead motors, and 6 lead center-tapped motors).
Step motors with low current ratings and high inductance will perform better at low speeds,  pro-
viding higher low-end torque.  Motors with high current ratings and low inductance will perform 
better at higher speeds, providing more high-end torque.  Higher voltages will cause the current 
to  flow  faster...

Microstep Selection (DIP Settings)
Switches 2, 3 and 4, of the DIP switch select the microstep resolution of the driver.  Table 7 shows 
the standard resolution values along with the associated positions for the select switches.  The 
standard waveforms are sinusoidal.  The steps/rev are based on a 200 step/rev motor.
ResolutionSteps/RevPosition 
1 Position 
2 Position 
3 Position 
4 Auto Reduce Current
1 200OFFONON ON Disabled
2 400OFFONONOFF Disabled
5 1000OFFONOFF ON Disabled
8 1600OFFONOFF OFF...

Reducing Output Current
Reducing the output current is accomplished by setting switch 1 of the DIP switch to the ON po-
sition. This should occur approximately after the last positive going edge of the step clock input.  
The amount of current per phase in the reduction mode is approximately 50% of the set current.
Determining Output Current
The output current for the motor used when microstepping is determined differently from that of 
a full/half step unipolar driver.  In the MLA10641, a sine/cosine...